111828229 has 2 divisors, whose sum is σ = 111828230. Its totient is φ = 111828228.

The previous prime is 111828179. The next prime is 111828239. The reversal of 111828229 is 922828111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73102500 + 38725729 = 8550^2 + 6223^2 .

It is a cyclic number.

It is not a de Polignac number, because 111828229 - 2²¹ = 109731077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111828194 and 111828203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111828239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55914114 + 55914115.

It is an arithmetic number, because the mean of its divisors is an integer number (55914115).

Almost surely, 2^111828229 is an apocalyptic number.

It is an amenable number.

111828229 is a deficient number, since it is larger than the sum of its proper divisors (1).

111828229 is an equidigital number, since it uses as much as digits as its factorization.

111828229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 34.

The square root of 111828229 is about 10574.8867133412. The cubic root of 111828229 is about 481.7819026148.

The spelling of 111828229 in words is "one hundred eleven million, eight hundred twenty-eight thousand, two hundred twenty-nine".